Thomas Siebel
C3.ai
Thomas Siebel is the CEO of C3.ai. Siebel was born in 1952 in Chicago and educated at Shattuck-Saint Mary's School and University of Illinois Urbana-Champaign.
Recent developments
AI summary of recent coverageRecent coverage of Thomas Siebel has focused on his return as CEO of C3.ai in May 2026, less than a year after stepping down amid the company's operational challenges and declining revenue. The headlines also document several significant stock sales by Siebel over the past year, including transactions totaling millions of dollars. Additionally, coverage has centered on C3.ai's earnings calls and the company's focus on enterprise artificial intelligence applications during a period of business restructuring.
Summarized from the headlines below; see each source for the full story.
Key Facts
Source: Wikidata ↗- Born
- November 20, 1952 · Chicago
- Citizenship
- United States
- Education
- Shattuck-Saint Mary's School, University of Illinois Urbana-Champaign
On CEOInsider
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In the News
12 stories- MarketBeat·
C3.ai (NYSE:AI) CEO Thomas Siebel Sells 139,500 Shares of Stock
- Investing.com Canada·
C3.ai CEO Thomas Siebel sells over $4.2m in company shares
- StockStory·
5 Must-Read Analyst Questions From C3.ai’s Q1 Earnings Call
- TradingView·
5 Must-Read Analyst Questions From C3.ai’s Q1 Earnings Call
- techi.com·
C3.ai earnings preview: Tom Siebel's enterprise AI trial
- The Motley Fool·
Thomas Siebel Is Back as C3.ai CEO. Will This Help the Stock Rebound?
- Investing.com·
C3.ai founder Thomas Siebel returns as CEO
- The Business Journals·
Tom Siebel returns as C3.ai CEO less than a year after stepping down
- Yahoo Finance·
C3.ai Founder Thomas Siebel Sells $7.6 Million in Stock After Difficult Year
- The Motley Fool·
C3.ai Founder Thomas Siebel Sells $7.6 Million in Stock After Difficult Year
- Reuters·
C3 AI weighs sale after founder-CEO Siebel steps aside, sources say
- CNBC·
C3 AI reports declining revenue, announces new CEO to replace Siebel
Thomas Siebel: FAQ
- What company does Thomas Siebel lead?
- Thomas Siebel is CEO of C3.ai.
- Where was Thomas Siebel educated?
- Thomas Siebel studied at Shattuck-Saint Mary's School, University of Illinois Urbana-Champaign.